Trimming machine



Set 3, W35. A. c. SMITH 55h TRIMMING 'MACHINE Filed Jan. 4, 1954 2 Sheets-Sheet 2 Patented sept. 3, 1935 2,013,072

UNITED STAT-ss PATENT OFFICE TRIMMING MACHINE Archibald C. Smith, Rochester, N. Y., assignol to United Shoe Machinery Corporation, Paterson, v N. J., a corporationof New `llersey Application:J-anua1'y 4, 1934, Serial. No. 705,261

4 Claims. (Cl. 12-51) This invention relates to trimming machines a heel engaging face 34 (Fig. 3) which intersect andjis illustrated as embodiedV in a machine of to form a shearing edge 36. Mounted for orbital the type disclosed inUnited States Letters Patmovement over surface 32 of the gage 38 is a ent No. 1,963,071, granted June 19, `1934, upon hook-shaped cutter or cutting blade 38 having a 5 an application led in the name of GeorgeBoulcutting edge dll (Fig. 2) which forms with the 5 ton. f shearing edge 36 a throat into which a project- In order to insure against careless or inexpeing margin 23 of the flap 2l is fed. In order to rienced operatorscutting the side cover of a heel guide the heel 22 and the projecting margin 23 to which a heel-breast covering flap has been past the cutter 38, the breast ofthe heel is `held ll0 attached While trimming lateral projecting maragainst the upper portion of the face 34 of the `1o ginsof suchilap iiush with the respective breast gage 3G, the Side of the heel t0 which the Side edges of the heel in 'the above-mentioned machine cover` of the heel has been applied and beyond which includes a cutter mounted for movement which the margin 29 projects being held in Slidacross a shearing edge of a breast gage,`the maing engagement with the bottom face of a lip chine illustrated herein is provided with a com- 42 of the gage 523. l5

bined guard and gage having a lip constructed The lip 2 of the gage 28 iS thus intelDOSed ,and arranged to engage a side of the heel adjabetween the leading or forward portion ofV the cent to a corresponding breast edgeV ofthe heel Cutter 38 and the side of the heel which` is in `and to cooperate with the breast gage in guidengagement with the lip. The lip 42 may alSO ingthe projecting margin of the ap between the be said to be positioned adjacent to the cutter 20 cutter and the shearing edge, the lip being posi- 33 and Il overippngrelation With the' leading tioned adjacent to and overlapping the `leading portion ofthe cutter in the direction of travel portion of the cutter in the direction of travel 44 (Fig- 3) Of the heel 22 past the Cutter. 111th@ of the heel past the cutter. illustrated construction the gage 28 is cutaway This and other features of the invention will t0 pTOVide a IlOilCh 46 (Fig. 3) Within Which the 25 be described as embodied in an illustrated maforward portion of the cutter 38 moves in an chine and pointed out in the appended claims. orbital path, the forward portion of the cutter In the drawings, at all times remaining within the notch. The lip Fig, 1 is avertical sectional view taken through 42 iS Very thin and the cutting edge 4U 0f the 30 the lower part of the operating head of the iliuscutter 38 is located just above the upper face 50 of 30 trated machine; the lip, theplane of movement of the cutter 38 Fig. 2 is an enlarged plan view of the parts of intersecting the bottom of the notch. The lower the machine to which work is presented; Y face of the cutter 38 which terminates in the Fig. 3 is a perspective view of the parts of the cutting edge 40 may, if desirable, engage the machine illustrated in Fig. 2; and upper face 58 of the lip 42, although it is prefer- 35 Fig. 4 is a, perspective View showing the parte able to have such face slightly spaced therefrom. of the machine i11ustrated in Figs. 2 and 3 in the By providing a gage 28 having the lip 42 there process of trimming one of the projecting maris no danger of the operatorV cutting into the side gins of a covering flap secured `to the breast of a cover of the heel by accidentally moving the 40 heel flush with a corresponding breast edge of same into engagement with the leading portion of 40 the heel. Y the cutter 38 as the heel 22 is moved in a tortuous The illustrated machine is described with refpath past the cutter 38. erence to trimming the projecting margins 20 Y The mechanism for operating the cutter 38 is (Fig. 4) of a covering ap 2l cemented to a Louis identical with that disclosed in the above-menheel 22 of a shoe 24 flush with a corresponding tioned United States Letters Patent No. 1,963,071 45 breast edge 26 of the heel. The machine with and will be briefly described. The cutter 38 is the exception of a combined guard and gage 28, f adjustably secured by a set screw 52 to a dependis substantially identical with the machine which ing arm 54 of a cutter carrier 56 provided with is disclosed in detail in the above-mentioned `a cylindrical recess 58 of suitable size to receive a United States Letters Patent No. 1,963,071, to roller bearing 60 which is rotatably secured to an 50 which reference may be had for a more complete eccentrically mounted pin 62 of a shaft 64. One understanding of the construction and operation end of the cutter carrier 58 is bifurcated to reof the machine. Y ceive a block 68 which is mounted upon a pin The machine comprises a stationary gage or 88 secured to the main frame of the machine.

block 3U provided with a flat upper face 32 and The shaft 64 may be operated by any suitable 65 source of power. As the shaft 64 is rotated it will be clear that an orbital movement is imparted to the cutter 38.

The shape of the orbit may be varied by changing the position of the cutter 38 relatively to the axis of rotation of the shaft 64. The gages 2B, 30 may be initially adjusted relatively to the cutter 3B through mechanism which is identical with that disclosed in said United States Letters Patent No. 1,963,071 and it will therefore be unnecessary further to describe such mechanism in this application.

The trimming cut is started at the rear part of the shank portion le of the sole of the shoe in order to joint the lateral margins of the shank portion of the sole with the heel. In order to permit right and left projecting margins 20 of the ap 2| of the heel 22 to be progressively trimmed toward the tread end 12 of the heel the machine may be provided with right and left units.

Having described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. A trimming machine having, in combination, a stationary gage provided with a shearing edge, a cutting blade mounted for movement across said shearing edge to trim a projecting margin of a cover secured to one face ci' an article and projecting above a second face of the article, and a combined guard and gage which is provided with a lip having a surface constructed and arranged for engagement with said second face, said lip being constructed and arranged to overlap the leading portion of the blade in the direction of travel of the article guided by said firstnamed gage and said lip past the blade thereby to insure that the second face of the article is protected from contact with the blade during the trimming operation.

2. A trimming machine having, in combination, a stationary gage provided with a shearing edge, a hook-shaped cutter having a face which terminates in a cutting edge, means for moving the cutter across said shearing edge to trim a projecting portion of a covering flap secured to the breast of a heel which is moved past the cutter flush with one of the breast edges of the heel, and a combined guard and gage which is provided with a lip positioned adjacent to said face or the cutter and overlapping the leading end porti-on of said cutter in the direction of travel of the heel past the cutter, said lip being constructed and arranged for engagement with the side of the heel adjacent to said breast edge' and cooperating with said stationary gage to guide the projecting portion of the flap between the cutting and the shearing edges.

3. A trimming machine having, in combination, a stationary gage provided with a shearing edge, a cutter having a cutting edge mounted for movement across the shearing edge to trim a projecting margin of a covering flap secured to the breast of a heel flush with a breast edge of the heel, a gage provided with a lip which is interposed between the leading portion of the cutting edge of the cutter and a side of the heel the projecting margin of the cover of which is guided by the gages, andmeans for operating the cutter. p

4. A trimming machine having, in combination, a stationary gage provided with a shearing edge, a hook-shaped cutter provided with a cutting edge and mounted for movement in an orbital path to cause its cutting edge to travel across the shearing edge thereby to trim a lateral projecting margin of a covering flap secured to the breast of a heel flush with one of the breast edges oi the heel, another gage provided with a notch constructed and arranged to include the leading portion of the cutter during its orbital movement and having a heel-guiding surface which is in overlapping relation with the cutter in the direction of travel of the heel past the cutter to guard the side of the heel from being accidentally scarred by the cutter, and means for operating the cutter in said path.

ARCHIBALD C. SMITH. 

